:root{--primary: #0f4492;--primary-dark: #17233c;--primary-light: #1a5bb8;--secondary: #F0AB00;--secondary-dark: #d99a00;--success: #10b981;--success-bg: rgba(16, 185, 129, .1);--warning: #f59e0b;--warning-bg: rgba(245, 158, 11, .1);--danger: #ef4444;--danger-bg: rgba(239, 68, 68, .1);--info: #3b82f6;--info-bg: rgba(59, 130, 246, .1);--bg-body: #0f1419;--bg-sidebar: #151b23;--bg-card: #1c2432;--bg-card-hover: #232d3f;--bg-input: #0d1117;--text-primary: #f0f6fc;--text-secondary: #8b949e;--text-muted: #6e7681;--border-color: #30363d;--border-light: #21262d;--sidebar-width: 280px;--header-height: 60px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--transition-fast: .15s ease;--transition-normal: .25s ease}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background-color:var(--bg-body);color:var(--text-primary);line-height:1.5;min-height:100vh}a{color:inherit;text-decoration:none}button{font-family:inherit}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--bg-body) 0%,var(--primary-dark) 50%,var(--primary) 100%);padding:24px}.login-card{background:var(--bg-card);border-radius:var(--radius-lg);padding:48px 40px;width:100%;max-width:420px;box-shadow:var(--shadow-lg);border:1px solid var(--border-color)}.login-header{text-align:center;margin-bottom:40px}.login-header img{width:120px;height:auto;margin-bottom:24px}.login-header h1{font-size:24px;font-weight:600;margin-bottom:8px;color:var(--text-primary)}.login-header 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h2{font-size:18px;font-weight:700;color:var(--text-primary);margin-bottom:2px}.sidebar-subtitle{font-size:12px;color:var(--secondary);font-weight:500}.sidebar-close{display:none;background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:8px;margin-left:auto}.sidebar-nav{flex:1;padding:16px 12px;overflow-y:auto}.nav-section{margin-bottom:24px}.nav-section-title{display:block;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);padding:0 12px;margin-bottom:8px}.nav-link{display:flex;align-items:center;gap:12px;padding:12px 14px;color:var(--text-secondary);border-radius:var(--radius-md);transition:all var(--transition-fast);margin-bottom:2px}.nav-link svg{flex-shrink:0}.nav-link span{font-size:14px;font-weight:500}.nav-link:hover{background:var(--bg-card);color:var(--text-primary)}.nav-link.active{background:linear-gradient(135deg,var(--secondary) 0%,var(--secondary-dark) 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var(--transition-fast);background:var(--bg-card);color:var(--text-primary);font-weight:500}.btn-small:hover{background:var(--bg-card-hover)}.btn-small.btn-danger{background:var(--danger-bg);color:var(--danger)}.btn-small.btn-danger:hover{background:var(--danger);color:#fff}.btn-icon{padding:8px;background:transparent;border:none;cursor:pointer;font-size:18px;color:var(--text-secondary);border-radius:var(--radius-sm);transition:all var(--transition-fast)}.btn-icon:hover{background:var(--bg-card);color:var(--text-primary)}.btn-icon.btn-danger:hover{background:var(--danger-bg);color:var(--danger)}.form-container{background:var(--bg-card);padding:32px;border-radius:var(--radius-lg);border:1px solid var(--border-color);max-width:800px}.form-group{margin-bottom:24px}.form-group label{display:block;margin-bottom:8px;font-weight:500;font-size:14px;color:var(--text-primary)}.form-group small{display:block;margin-top:6px;color:var(--text-muted);font-size:12px}.form-group input,.form-group 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var(--border-color)}.stat-card:hover{transform:translateY(-2px);border-color:var(--secondary);box-shadow:var(--shadow-md)}.stat-icon{width:56px;height:56px;background:var(--bg-body);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}.stat-number{font-size:32px;font-weight:700;color:var(--text-primary);display:block;line-height:1.2}.stat-label{color:var(--text-secondary);font-size:14px}.quick-actions{margin-top:40px}.quick-actions h2{margin-bottom:20px;font-size:20px;font-weight:600}.actions-grid{display:flex;gap:12px;flex-wrap:wrap}.action-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 20px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:14px;font-weight:500;text-decoration:none;transition:all var(--transition-fast)}.action-btn:hover{border-color:var(--secondary);background:#f0ab0014}.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}.card{background:var(--bg-card);border-radius:var(--radius-lg);padding:24px;border:1px solid var(--border-color);transition:all var(--transition-fast)}.card:hover{border-color:var(--border-light);box-shadow:var(--shadow-sm)}.card-inactive{opacity:.5}.card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px;gap:12px}.card-header h3{font-size:18px;font-weight:600;color:var(--text-primary)}.card-conductor{color:var(--secondary);font-size:14px;margin-bottom:8px;display:flex;align-items:center;gap:6px}.card-description{color:var(--text-secondary);font-size:14px;margin-bottom:20px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.card-actions{display:flex;gap:8px;flex-wrap:wrap;padding-top:16px;border-top:1px solid 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var(--transition-fast);font-size:14px;font-weight:500}.filtro-tab:hover{border-color:var(--text-muted)}.filtro-tab.active{border-color:var(--secondary);color:var(--text-primary);background:#f0ab0014}.mensajes-list{display:flex;flex-direction:column;gap:16px}.mensaje-card{display:flex;align-items:center;gap:24px;background:var(--bg-card);padding:20px 24px;border-radius:var(--radius-lg);border-left:4px solid var(--warning);border-top:1px solid var(--border-color);border-right:1px solid var(--border-color);border-bottom:1px solid var(--border-color);transition:all var(--transition-fast)}.mensaje-card:hover{background:var(--bg-card-hover)}.mensaje-card.estado-aprobado{border-left-color:var(--success)}.mensaje-card.estado-rechazado{border-left-color:var(--danger)}.mensaje-info{min-width:180px}.mensaje-fecha{font-size:13px;color:var(--text-muted)}.mensaje-duracion{font-size:14px;color:var(--text-secondary);margin-top:4px}.mensaje-player{flex:1}.btn-play{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);border:none;cursor:pointer;font-size:18px;transition:all var(--transition-fast);color:#fff;display:flex;align-items:center;justify-content:center}.btn-play:hover{transform:scale(1.05);box-shadow:0 4px 12px #0f449266}.btn-play.playing{background:linear-gradient(135deg,var(--danger) 0%,#dc2626 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td{background:var(--bg-card-hover)}.text-muted{color:var(--text-muted)}.actions-cell{display:flex;gap:8px}.loading{display:flex;align-items:center;justify-content:center;min-height:200px;color:var(--text-secondary);font-size:15px}.loading-screen{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--bg-body);gap:16px}.loading-spinner{width:48px;height:48px;border:3px solid var(--border-color);border-top-color:var(--secondary);border-radius:50%;animation:spin .8s linear infinite}.empty-state{text-align:center;padding:80px 24px;color:var(--text-secondary)}.empty-state p{margin-bottom:24px;font-size:15px}.error-message{background:var(--danger-bg);color:var(--danger);padding:14px 18px;border-radius:var(--radius-md);margin-bottom:20px;font-size:14px;border:1px solid rgba(239,68,68,.3)}hr{border:none;border-top:1px solid var(--border-color);margin:32px 0}@media(max-width:1024px){.main-content{padding:24px}.cards-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}}@media(max-width:768px){.mobile-header{display:flex}.sidebar{transform:translate(-100%);transition:transform var(--transition-normal)}.sidebar-close{display:block}body.sidebar-open .sidebar{transform:translate(0)}body.sidebar-open .sidebar-overlay{display:block;opacity:1}.main-content{margin-left:0;width:100%;padding:80px 16px 24px}.page-header{flex-direction:column;align-items:flex-start}.page-header h1{font-size:24px}.form-row{grid-template-columns:1fr}.form-container{padding:24px}.stats-grid,.cards-grid{grid-template-columns:1fr}.horario-item{flex-direction:column;align-items:flex-start;gap:12px}.horario-time{min-width:auto}.mensaje-card{flex-direction:column;align-items:flex-start;gap:16px}.mensaje-actions{width:100%}.mensaje-actions .btn-small{flex:1}.dias-tabs{padding:6px;gap:4px}.dia-tab{padding:10px 14px;font-size:13px}.modal{padding:24px;margin:16px}}@media(max-width:480px){.stat-card{padding:20px}.stat-icon{width:48px;height:48px;font-size:20px}.stat-number{font-size:28px}.action-btn{width:100%;justify-content:center}.form-actions{flex-direction:column}.form-actions button{width:100%}}.image-upload-zone{border:2px dashed var(--border-color);border-radius:var(--radius-lg);padding:40px 24px;text-align:center;cursor:pointer;transition:all var(--transition-fast);background:var(--bg-input)}.image-upload-zone:hover{border-color:var(--secondary);background:#f0ab000d}.image-upload-zone.drag-over{border-color:var(--secondary);background:#f0ab001a;transform:scale(1.01)}.image-upload-zone.uploading{pointer-events:none;opacity:.8}.upload-icon{color:var(--text-muted);margin-bottom:16px}.upload-text{display:flex;flex-direction:column;gap:4px}.upload-text strong{color:var(--text-primary);font-size:15px}.upload-text span{color:var(--text-muted);font-size:13px}.upload-hint{color:var(--success)!important;font-size:12px!important;margin-top:8px}.upload-loading{display:flex;flex-direction:column;align-items:center;gap:16px;color:var(--text-secondary)}.upload-spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--secondary);border-radius:50%;animation:spin .8s linear infinite}.image-preview-container{display:flex;gap:20px;align-items:flex-start}.image-preview{flex:0 0 200px;height:150px;border-radius:var(--radius-md);overflow:hidden;background:var(--bg-input);border:1px solid var(--border-color)}.image-preview img{width:100%;height:100%;object-fit:cover}.image-actions{display:flex;flex-direction:column;gap:8px}.image-error{color:var(--danger);font-size:13px;margin-top:8px;padding:8px 12px;background:var(--danger-bg);border-radius:var(--radius-sm)}@media(max-width:768px){.image-preview-container{flex-direction:column}.image-preview{flex:none;width:100%;height:200px}.image-actions{flex-direction:row;width:100%}.image-actions button{flex:1}}.btn-small.btn-success{background:var(--success-color, #22c55e);color:#fff;border-color:var(--success-color, #22c55e)}.btn-small.btn-success:hover{background:#16a34a;border-color:#16a34a}.btn-small.btn-warning{background:var(--warning-color, #f59e0b);color:#fff;border-color:var(--warning-color, #f59e0b)}.btn-small.btn-warning:hover{background:#d97706;border-color:#d97706}.success-message{color:var(--success-color, #22c55e);font-weight:500;display:inline-flex;align-items:center;gap:6px}.preview-card{background:var(--card-bg, #1e293b);border:1px solid var(--border-color, #334155);border-radius:var(--radius-md, 8px);padding:16px;margin-top:12px}.preview-card h4{margin:0 0 12px;color:var(--text-secondary, #94a3b8);font-size:.85rem;text-transform:uppercase;letter-spacing:.05em}.preview-content{display:flex;flex-direction:column;gap:4px}.preview-label{font-size:.7rem;font-weight:700;letter-spacing:.1em;color:var(--primary-color, #6366f1)}.preview-title{font-size:1.1rem;font-weight:600;color:var(--text-primary, #f1f5f9)}.preview-description{color:var(--text-secondary, #94a3b8);font-size:.9rem}.filtro-tab.active.warning{background:var(--warning-color, #f59e0b);color:#fff;border-color:var(--warning-color, #f59e0b)}.filtro-tab.active.success{background:var(--success-color, #22c55e);color:#fff;border-color:var(--success-color, #22c55e)}.filtro-tab.active.danger{background:var(--danger-color, #ef4444);color:#fff;border-color:var(--danger-color, #ef4444)}.stat-card.highlight{border-color:var(--primary-color, #6366f1);box-shadow:0 0 0 1px var(--primary-color, #6366f1)}.subtitle{color:var(--text-secondary, #94a3b8);margin-top:-8px;margin-bottom:24px}.loading-spinner{width:40px;height:40px;border:4px solid var(--border-color, #334155);border-top-color:var(--primary-color, #6366f1);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto}@keyframes spin{to{transform:rotate(360deg)}}.toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px}.toast{padding:12px 20px;border-radius:var(--radius-md, 8px);color:#fff;font-weight:500;box-shadow:0 4px 12px #0000004d;animation:slideIn .3s ease}.toast.success{background:var(--success-color, #22c55e)}.toast.error{background:var(--danger-color, #ef4444)}.toast.warning{background:var(--warning-color, #f59e0b)}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}